🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.3 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.6 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.14

Radius: 1.05

Gravity: 1.03 G

Time & Orbit

Eccentricity (e): 0.156

Orbit Range: 0.51 AU - 0.69 AU

Year: 296 Days

Day: 25.9 Hours

Environment

Temp: -137 °C

Axial Tilt: 53.6 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Gas Giant

Semi-Major Axis: 0.99 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 984.4

Radius: 8.7

Gravity: 13.01 G

Time & Orbit

Eccentricity (e): 0.183

Orbit Range: 0.81 AU - 1.17 AU

Year: 626 Days

Day: 12.2 Hours

Environment

Temp: -168 °C

Axial Tilt: 3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 27,835,405 km

• M1: 108,159 km (0.105 R)
• M2: 419,173 km (0.049 R)
• M3: 741,108 km (0.119 R)
• M4: 1,057,208 km (0.05 R)
• M5: 1,419,684 km (0.077 R)
• M6: 1,864,588 km (0.104 R)
• M7: 2,431,863 km (0.09 R)
• M8: 2,768,159 km (0.103 R)
• M9: 3,122,706 km (0.081 R)
• M10: 4,105,115 km (0.042 R)
• M11: 4,684,508 km (0.073 R)
• M12: 5,446,709 km (0.111 R)
• M13: 5,731,244 km (0.101 R)
• M14: 7,014,794 km (0.097 R)
• M15: 7,700,550 km (0.058 R)

Planet 3 - Gas Giant

Semi-Major Axis: 2.43 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 710.7

Radius: 8.9

Gravity: 8.97 G

Time & Orbit

Eccentricity (e): 0.02

Orbit Range: 2.38 AU - 2.48 AU

Year: 2408 Days

Day: 13 Hours

Environment

Temp: -189 °C

Axial Tilt: 24.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 27,835,405 km

• M1: 110,702 km (0.077 R)
• M2: 395,537 km (0.101 R)
• M3: 864,227 km (0.067 R)
• M4: 1,235,529 km (0.104 R)
• M5: 1,679,834 km (0.113 R)
• M6: 2,430,965 km (0.104 R)
• M7: 2,906,537 km (0.1 R)
• M8: 3,407,690 km (0.094 R)
• M9: 4,225,392 km (0.096 R)
• M10: 4,937,328 km (0.078 R)
• M11: 5,626,974 km (0.083 R)
• M12: 6,352,374 km (0.055 R)
• M13: 7,770,113 km (0.111 R)
• M14: 8,147,250 km (0.05 R)
• M15: 10,071,377 km (0.118 R)
• M16: 12,154,677 km (0.109 R)
• M17: 18,065,439 km (0.074 R)
• M18: 18,672,357 km (0.108 R)

Planet 4 - Gas Giant

Semi-Major Axis: 2.58 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 500.3

Radius: 8.3

Gravity: 7.26 G

Time & Orbit

Eccentricity (e): 0.035

Orbit Range: 2.49 AU - 2.67 AU

Year: 2635 Days

Day: 10.7 Hours

Environment

Temp: -201 °C

Axial Tilt: 25.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 27,835,405 km

• M1: 103,671 km (0.077 R)
• M2: 502,948 km (0.096 R)
• M3: 905,815 km (0.112 R)
• M4: 1,721,273 km (0.065 R)
• M5: 2,512,496 km (0.1 R)
• M6: 3,284,421 km (0.119 R)
• M7: 3,932,180 km (0.099 R)
• M8: 4,770,526 km (0.105 R)
• M9: 5,082,438 km (0.098 R)
• M10: 5,503,706 km (0.041 R)
• M11: 6,283,709 km (0.066 R)
• M12: 7,078,223 km (0.106 R)
• M13: 7,425,889 km (0.102 R)
• M14: 8,250,173 km (0.082 R)
• M15: 9,032,719 km (0.111 R)
• M16: 9,476,876 km (0.109 R)
• M17: 13,394,844 km (0.043 R)
• M18: 14,846,990 km (0.051 R)
• M19: 15,178,050 km (0.096 R)
• M20: 15,659,606 km (0.092 R)

Planet 5 - Gas Giant

Semi-Major Axis: 3.43 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 336.9

Radius: 12.2

Gravity: 2.26 G

Time & Orbit

Eccentricity (e): 0.026

Orbit Range: 3.34 AU - 3.52 AU

Year: 4039 Days

Day: 10.2 Hours

Environment

Temp: -213 °C

Axial Tilt: 21.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 27,835,405 km

• M1: 151,692 km (0.088 R)
• M2: 612,005 km (0.091 R)
• M3: 1,242,560 km (0.085 R)
• M4: 1,947,914 km (0.047 R)
• M5: 3,087,550 km (0.109 R)
• M6: 4,562,286 km (0.068 R)
• M7: 5,481,116 km (0.096 R)
• M8: 6,834,977 km (0.032 R)
• M9: 8,234,016 km (0.093 R)
• M10: 9,741,514 km (0.09 R)
• M11: 10,308,340 km (0.101 R)
• M12: 11,633,329 km (0.111 R)
• M13: 12,666,003 km (0.078 R)
• M14: 13,204,854 km (0.097 R)
• M15: 13,618,941 km (0.057 R)
• M16: 14,424,975 km (0.037 R)
• M17: 16,288,815 km (0.116 R)
• M18: 17,415,586 km (0.09 R)
• M19: 18,422,080 km (0.073 R)

Planet 6 - Gas Giant

Semi-Major Axis: 3.9 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 559.4

Radius: 13.2

Gravity: 3.21 G

Time & Orbit

Eccentricity (e): 0.005

Orbit Range: 3.88 AU - 3.92 AU

Year: 4897 Days

Day: 11.3 Hours

Environment

Temp: -204 °C

Axial Tilt: 29.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 27,835,405 km

• M1: 164,707 km (0.109 R)
• M2: 586,274 km (0.053 R)
• M3: 1,122,882 km (0.104 R)
• M4: 2,303,358 km (0.087 R)
• M5: 3,167,286 km (0.045 R)
• M6: 4,100,029 km (0.033 R)
• M7: 4,521,446 km (0.064 R)
• M8: 5,342,738 km (0.081 R)
• M9: 5,934,398 km (0.116 R)
• M10: 8,011,564 km (0.111 R)
• M11: 8,903,317 km (0.096 R)
• M12: 9,778,016 km (0.104 R)
• M13: 10,492,346 km (0.048 R)
• M14: 11,931,627 km (0.099 R)
• M15: 12,359,178 km (0.087 R)
• M16: 16,043,474 km (0.106 R)
• M17: 18,957,192 km (0.092 R)
• M18: 19,803,317 km (0.112 R)
• M19: 23,368,235 km (0.09 R)
• M20: 23,888,835 km (0.042 R)
• M21: 25,263,041 km (0.117 R)

Kuiper Belt

Range: 30 - 49 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 426 - 19,428 AU

Composition

Type: Cometary Reservoir

System's final boundary, containing trillions of icy planetesimals.

Gravitational Limit